E3S Web Conf.
Volume 280, 2021Second International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2021)
|Number of page(s)||8|
|Section||Sustainable Materials and Technologies|
|Published online||30 June 2021|
Parameter analysis of non-metallic inclusion formation in thermite alloys
1 Kryvyi Rih National University, Metallurgy & Foundry Department of Ferrous Metals, Ukraine
2 Zaporizhzhia National University, Department of Metallurgy, Ukraine
3 Zaporizhzhia Polytechnic National University, Department of Machines and Foundry Technology, Ukraine
4 Satbayev University, Metallurgy and Mineral Processing Department, Kazahstan
The methodology of calculating parameters of the primary and secondary non-metallic inclusion formation in thermite alloys is offered. The regularities of the growth time of non-metallic inclusion in the form of corundum depending on its size, mass and quantity are analysed. It is shown that in the thermite alloy obtained by self-propagating high-temperature synthesis, the average size of corundum inclusions, surrounding the heterogeneous inclusions of chromium carbide, is 15.4 μm. It is shown that during the process of aluminothermic reactions of the SHS process a significant number of small inclusions of corundum is formed. It is shown that the alumina particles are dissolved in the alloy and they are the centers of crystallization and play the role of inoculating modifier.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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